Kimura, who is suspected of illegally producing gunpowder in the Wakayama City explosion case, was re-arrested.
A powder was found at Kimura’s home, strengthening the suspicion that he produced gunpowder without permission.
Kimura continues to keep silent, and the motive of the case remains unknown.
The prefectural police will analyze the search histories of smartphones and computers in order to investigate the route through which the knowledge of explosive manufacturing methods was acquired.
